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Flaigg, Norman G.
Erysimum capitatum (Douglas ex Hook.) Greene
Prairie rocket, Sand-dune wallflower, Sanddune wallflower, Western wallflower
USDA Symbol: erca14
An extremely variable species, though usually a clumped plant with densely crowded clusters of orange, yellow, orange-brown or purplish-maroon flowers atop each minimally-branched stem. The narrow leaves and stems of this biennial to short-lived perennial are hairy. The seedpods stand upright.
Plant CharacteristicsDuration: Biennial Habit: Herb Fruit: Size Class:
Bloom InformationBloom Color: Red , Orange , Yellow
Bloom Time: May , Jun , Jul
, WY Native Distribution: VA
to s.w. Canada, s. to TN, TX
& CA; much more common westward Native Habitat:
Plains; foothills; high elevation coniferous forests
Growing ConditionsLight Requirement:
Sun Soil Moisture:
Dry Soil Description:
Dry, well-drained soils. Conditions Comments:
Although it is a biennial,
western wallflower will usually produce the flowers the first year. Western wallflower is extremely variable in size and flower
color. It is similar to the cultivated wallflower (Cheiranthus spp.) and is equally showy in a wildflower garden.
PropagationDescription: Untreated seed planted 1/4 deep will germinate readily. Plant in late summer or early fall.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Tohono Chul Park, Inc.
- Tucson, AZNative Seed Network
- Corvallis, OR
Record Last Modified: 2008-05-28
Research By: TWC Staff